Scaffold



Dec. 16,1930;

W. G. VENARD S CAFFOLD Filed Nov. 4, 1929 5 Sheets-Sheet l IN V EN TOR Dec. 16, 1930. w. e. VENAR D SCAFFOLD Filed Nov. 4, 1929, 5 Sheets-Sheet INVENTOR WQ'ZZ enaV'd} I Dec, 16, 1930. w. G. VENARD I 1,785,399

SCAFFOLD Filed NOV. 4, 1929 3 Sheets-Sheet 3 A 2 INVENTOR, 35E firefiweward 8W Patented Dec. 16, 1930 WILLIAM G. vnnanli, or Los ANGELES; oatzronnm,

JSCAFFOLD I Application filed. November 4,1929. serial masthead io fold and skip operative therein and of adjustable. form so as to vary capacity andbe adaptable as a platform for carrying loads of j construction material and for arrangement horizontally as an elevatorfor wheeled vehicles. Numerous additional objects, advantages and features of construction and arrange ment, and deta1ls of means will be made manltest in the ensuing description of the here with illustrative embodiment; it being understood that modifications, variations and adaptations may be resorted to within the spirit, scope and principle of the invention Figure 1 is a front elevation of the upper portion of the scaffold and the skip.

Figure 2 is a detail ofaskip rail and one of its platform bracket joints. 7

Figure 3 is a top plan of'the skip and scaftold parts partly in section. j

' Figure 4 is a plan of a cross-tie and a crows 1 nest rest therefor on a standard. Figure 5 is an elevation of one of the scatfold standards, broken away. Figure 6 is a planof a pin-and-socket block on a reach-arm of the scaffold.

Figure 7 is an, elevational section of the scaffold andits skip, at top position. a

Figure 8 is a detail of a skip joist and applied floor parts.

Figure 9 is an end view of the skip plat form. V r

Figure 10 is a perspective of matching splice ends of a scaffold skip rail.

rail or guideand shows in plan skip parts.

Figure 12 shows the skip extended. The invention includes a scaffold structure comprising a rear pair of spaced and con- In F ig. 5 the 'standardis as it is hereinafter more directly claimed. 7

.sijble Flguie 11 1s a horizontal SQC 10 1 f a S up r ceive Stlrrl pdQO13$ QZ-attached to the outer joist parts 15 5 I V I nected' poles or standards Sand a pair of spaced guides. G the latter beingspaced less i than andinf' advance of the former, Fig. '7,

andtorming. runways .for a vertically movshown as including a, number of tubularsections' fl and, if

- needed, subsections 8, all having rigid bracket or crowsenests 4, at suitable pitch, and also having, on their lower ,ends, fixed sockets 5 to receive abuttedlsejctionsof the standard as erected;

' 'Ihe yer ti cal G each include a, series of "superimposed, H-i'ron 'sections '6 and sub e t e the f r er hit-7 jo n i et their upperjendsi for added sections 6: which have their flanges "cut' lback to .leavetheweb as a tenons for the slots. i

The erected guide form smooth front and rear runways' for from shoes lOrattached to sk p jframe lugsll which "are secured'to a bottom cross-barl3jof the frame which, infcludes a'top cross-bar1-2. The cross-bars are connected stiles-11 to form a rigid frame "which is. braced by'diagon'als 11",. V v

. The ends of the top bars 12 have rear shoes 1 2, which ,run in thel back channels of the vertical guides'6 6. v V On the top bar 12 is pivoted {at 14 set of channel joists j 15' onjwhich is laid afloor.v 17

constituting the bed on platform of the skip.

F or the purpose of increasing the floor area or the skip end, floors-1 9 on bed frames are boltedat 21against -theend joists 15 and are braced by braces 22-22; whose lower ends are stepped onflanges 11 ofithe lugs 11 of the lnpnameq lheplatform is adapted to be set at various angles to the gLllClBSifl-Efi .andthis isprovided by adjustable braces 24 I gwhose lower endshave pivots 25 on'thebottom bar 13; the braces 22* also being extenfThe joists 15 are of telescopic,' sectional form including nested, channehiron pieces 16 having" their top edges notched" at; 26 to Theskip star 17 'is provided with anapron 29 hinged: to be thrown over the top otits guides G- when thehoist-isused for elevatmg i bulk material, as lumber, and other Structural parts. 7 .7 t

The front guides G and the-rear'standards are connected by foot-irons 31, Fig. 5,- and also-by transverse tie-bars 32 which have] pin brackets 33 with plugs .or pins 34 to set i in pin sockets 35*. in adjacent v connector blocks 35 which are rigidly secured on reachlaid.

arms 35 and whose outer ends aresecured by.

bolts36 to and flat against the respective endbutted sections 6.6 of the guides.G.. u

The arms 35'have thrust bars'35 adjustable'to' abutt thenear-wall in relation to which the scaffold isset upandivertically heightened sectionbyfsection as the wall is Crowds-01130511 the topunits of the standards S connect to topper units 7 of the. guides lQto increase the area-of the floor the exten- G and carry a fixed headerstructure %l0, and

any appropriate hoisting rig 'and tackle 60 may be attached to it to run'the skip. I Preferably the brackets 4 are formed of sections adapted to be bolted together about the standard unit. T

When the platform l7 is extended by shifting'the joists 15'outward or the inner section Thearm block 35*. has5 c011p1ing pin 3 5 which sets in its respective crows-nest socket 4: to'join up the parts. v V

5. In ahoist vertical guides consisting of H-section irons, and a skip which includes a frame "running between the guides, shoes nected by upright stiles forming a rigid framehavingback shoes on its upper bar to run in guides'and having front shoes on its lower bar to run in guides and a loading platform which is hinged to the upper bar and V has adjustable braces supported on the lower bar, and demountable end extension. ifloors secured, to. the ends of the platform, and having braces connected to the lower bar. i W. G.VENARD.

This is a continuation in pa of my'application No. 268,729 filed April 9, 192 8;

Whatis claimed is: i V 1.' skip hoist and scaffold apparatus, in-

cluding a pair of sectional, standards and a i 7 pair of channel' -gu'ides, spaced forwardly thereof, foot-irons and crown-irons connecting the respective parts of the standards and v guides and transverse braces connecting the standards and having forwardly reaching arms to gage the guides.

2. In-a skip scaffold, a pair of connected standards each conslstmg of a serles of alming units having respective telescopic portions forming joints, and a pairof channel guides each consisting of, channelunitshav ing telescopic joints ;'said joints being off-set as to the jointsof thestandards, and brace;

tiesconnecting the standards and the guides 3.. In a skip hoist, a vertical guide compriss ing H iron sections one of which has its web atone end cut back and its adjacent flanges slotted in the plane ofthe web, and the ad jacent end of the-next section having its flanges out back to form a'tenon for the I slotted flanges.

4., Ina skip hoist, a skip structure includ w 1mg upper, and lower cross-bars which are,

connected by upright" stiles forming a rigid frame; the upper bar having at its ends back' shoes to run in guides, and lugs attached to the ends of the lower bar and having front shoes to run insaid guides. 

